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Author Question: What best describes a double-blind experiment? A) Both subject groups alternate receiving each ... (Read 28 times) |
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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The average office desk has 400 times more bacteria on it than a toilet.
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Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.